Centrally manage the Jetty version
diff --git a/modules/webapp/pom.xml b/modules/webapp/pom.xml
index 0a37a81..07d7982 100644
--- a/modules/webapp/pom.xml
+++ b/modules/webapp/pom.xml
@@ -285,7 +285,6 @@
                 <!-- Compile the JSPs so that syntax errors are detected during the build. -->
                 <groupId>org.eclipse.jetty</groupId>
                 <artifactId>jetty-jspc-maven-plugin</artifactId>
-                <version>9.4.35.v20201120</version>
                 <executions>
                     <execution>
                         <goals>
diff --git a/pom.xml b/pom.xml
index 12221d4..24be39a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1235,7 +1235,12 @@
                 <plugin>
                     <groupId>org.eclipse.jetty</groupId>
                     <artifactId>jetty-maven-plugin</artifactId>
-                    <version>9.4.35.v20201120</version>
+                    <version>${jetty.version}</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.eclipse.jetty</groupId>
+                    <artifactId>jetty-jspc-maven-plugin</artifactId>
+                    <version>${jetty.version}</version>
                 </plugin>
                 <plugin>
                     <groupId>com.github.veithen.daemon</groupId>